Typically, the prime diving window in the country spans from December to April during the dry spell. The customary rainy period extends from June to October, with Palawan especially experiencing intense rainfall, making it less ideal for diving. Yet, the central Visayas often remain inviting during these months, boasting tranquil waters and clear visibility. The transition months, namely November and May, can offer delightful diving experiences, though this can vary based on the specific region.